Collars, widely used in vehicles, tractors, forklifts, locomotives, ships, mines, oil, chemicals, agriculture, and various water, oil, gas, and dust applications, are ideal for connecting and securing. These collars are small in size and value, but their role is immense. American collars, also known as clamps. American stainless steel collars are categorized into small and large American collars, with collar widths of 12.7mm and 14.2mm respectively. Made using the through-hole process, these collars have a broad application range, are resistant to twisting and pressure, and feature a balanced torque twist, providing a firm and tight lock, with a wide adjustment range. Suitable for securing connections of soft and hard pipes over 30mm in diameter, they are aesthetically pleasing after assembly. Features include low worm screw friction, making them suitable for high and medium-end vehicle models, boom-type equipment, steel and rubber hoses, or connections with anti-corrosion materials.